192 PRACTICAL PLANT PROPAGATION 



CRYPTOMERIA. Japan Cedar. 



SEEDS. Sow in light sandy leaf mold soil as soon as ripe. They ger- 

 minate in four months. 



CUTTINGS. Half-ripe wood under glass in sand in October. It takes 

 12 months to root cuttings. 



GRAFTING. Horticultural varieties are grafted on C. japonica. 



CUNNINGHAMIA. Chinese Fir. 



CUTTINGS. Half-ripe wood in late Summer. 

 LAYERS. 



CURRANTS, See Ribes. 



CYDONIA. Quince. 



CUTTINGS. Hard wood in Autumn. 



ROOT CUTTINGS. Autumn or Winter. Cut up roots into pieces 



three inches long. Keep in cellar until Spring, then plant in rows 



so that top of cuttings are on level with soil. 

 *BUDDING AND GRAFTING. Use varieties on types, especially the 



strong growing Angers and Fontenay. Budding in August is 



commonest method. 



CYTISUS. Scotch Broom, also called Genista. 

 SEEDS. Sown in May. 

 CUTTINGS. Tender shoots planted in enclosed frames or under bell 



jar. 

 GRAFTING. The stronger growing sorts are used as stocks for the 



smaller and trailing species. 



DABCECIA. 



SEEDS. Use part peat, loam and sand. 

 CUTTINGS. Soft wood, any time. 



DAPHNE. 



SEEDS. Sow seeds as soon as ripe. 



CUTTINGS. D. cneorum. Half-ripe wood. 



GRAFTING. Graft D. cneorum on D. mezereum indoors in Winter. 



Use veneer grafts on stock grown in pots. Rarely grafted. 

 LAYERS. In the Spring, especially D. cneorum. 



DAVIDIA. 



SEEDS. Sow in Spring. 



BUDDED. Possibly can be budded on Cornus florida. 



DECUMARIA. American Climbing Hydrangea. 

 CUTTINGS. Young plants grow slowly at first. 

 LAYERS. 



DEUTZIA. 



SEEDS. 



*CUTTINGS. Ripened wood and half -ripe wood taken from plants in 



greenhouses, or soft wood in Summer. Use hard wood for D. 



crenata varieties; half-ripe wood for D. Lemoinei and D. gracilis, 



its varieties. 

 LAYERS. 



DEWBERRIES. 



ROOT CUTTINGS. See Blackberry. 



